EXPLANATION OP OCEAN TEMPERATURE CHART No. 10. 



WINTER- QUAETEE SHOAL LIGHT-SHIP, VIEGINIA. 

 Observer: C. Lindemann. 



Location of station. — This ligbt-sliip ia ancliored 2 miles SE. by E. ^ E. from Winter-Quarter Shoal, and &J- miles off 

 Assateague Island, on the coast of Virginia. It is about midway between Chesapeake Bay and Delaware Bay 

 entrances, and about 1'18 miles north of Body's Island light. Between the light-sliip and the mainland depths of 4 

 to 10 fathoms occur. The 20- fathom curve is distant about 20 miles, the 100-fathom curve nearly 50 miles. 



Geographical posilion.—l,a,tit,ud.e, 37° 57' (03") N. ; longitude, 75° 05' (29") W. 



Depth of water. — Ten and one-half fathoms. 



Bange of temperatnre f March 1 to January 1).— Air, 48° (33° to ei°); surface, 41° (35°.5 to 76°.5.) 



Winter-Quarter Shoal light-ship may be regarded as the southernmost of a third series of stations in which the 

 surface temperature seldom exceeds 75° F., and within the period plotted (March to January) may fall (according to 

 the records) lo nearly 35°. The surface curves are somewhat less uniformly parallel with the air curves than at the 

 more sonthcrn stations, but the differences are not very marked. 



Tahle showing the direction of the winds, hy quadrants, for each month of the year, being the means of Jive years' oiservalions. 



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